Atomic-scale structure of gadolinium in nanocrystalline fluorapatite from marine sediments

Alain Manceau; Andrea Giacomelli; Yan Li; Anne-Claire Gaillot; Jianlin Liao; L. Spadini; Alexandre Simionovici; Andrea Koschinsky; Olivier Mathon; Stephan N. Steinmann

doi:10.1039/d5en01056j

January 1, 2026Environmental Science NanoOpen Access

Atomic-scale structure of gadolinium in nanocrystalline fluorapatite from marine sediments

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Key Points

The study aims to investigate the atomic-scale structure of gadolinium in nanocrystalline fluorapatite found in marine sediments.
Analyzed deep-sea sediments containing biogenic fluorapatite nanocrystals
Examined the bonding environment and structure at atomic scale
Identified critical rare-earth elements sequestered in the apatite-type structure
Gadolinium is present within a defective apatite bonding environment
Nanocrystals exhibit a complex structure within an amorphous matrix
Significant quantities of rare-earth elements are noted in the sediments

Implication

Analysis reveals the structure of rare-earth elements in marine sediments, highlighting their storage potential.

Abstract

Deep-sea sediments hold large quantities of critical rare-earth elements (REE) sequestered in a defective apatite-type bonding environment within an amorphous matrix coating biogenic fluorapatite nanocrystals (Ca 5 (CO 3 ) x (PO 4 ) 3− x F 1+ x ).

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Cite This Study

Manceau et al. (2026) studied this question.

synapsesocial.com/papers/698d6ebb5be6419ac0d547e1 https://doi.org/10.1039/d5en01056j

View Full Paper

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Atomic-scale structure of gadolinium in nanocrystalline fluorapatite from marine sediments

Key Points

Implication

Abstract

Discussion

Cite This Study

Atomic-scale structure of gadolinium in nanocrystalline fluorapatite from marine sediments

Key Points

Implication

Abstract

Discussion

Cite This Study

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